MEMORANDUM TO REGIONAL DIRECTORSDISTRICT DIRECTORSCHIEF PATROL AGENTSREGIONAL AND DISTRICT COUNSELSUBJECT: Exercising Prosecutorial DiscretionSince the 1996 amendments to the Immigration and Nationality Act (INA) which limitedthe authority of immigration judges to provide relief from removal in many cases, there has beenincreased attention to the scope and exercise of the Immigration and Naturalization Service’s(INS or the Service) prosecutorial discretion. This memorandum describes the principles withwhich INS exercises prosecutorial discretion and the process to be followed in making andmonitoring discretionary decisions. Service officers are not only authorized by law but expectedto exercise discretion in a judicious manner at all stages of the enforcement process–fromplanning investigations to enforcing final orders–subject to their chains of command and to theparticular responsibilities and authority applicable to their specific position. In exercising thisdiscretion, officers must take into account the principles described below in order to promote theefficient and effective enforcement of the immigration laws and the interests of justice.More specific guidance geared to exercising discretion in particular program areasalready exists in some instances,

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and other program-specific guidance will follow separately.

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For example, standards and procedures for placing an alien in deferred action status are provided in the StandardOperating Procedures for Enforcement Officers: Arrest, Detention, Processing, and Removal (Standard OperatingProcedures), Part X. This memorandum is intended to provide general principles, and does not replace any previousspecific guidance provided about particular INS actions, such as “Supplemental Guidelines on the Use of Cooperating Individuals and Confidential Informants Following the Enactment of IIRIRA,” dated December 29,1997. This memorandum is not intended to address every situation in which the exercise of prosecutorial discretionmay be appropriate. If INS personnel in the exercise of their duties recognize apparent conflict between any of theirspecific policy requirements and these general guidelines, they are encouraged to bring the matter to theirsupervisor’s attention, and any conflict between policies should be raised through the appropriate chain of commandfor resolution.

Memorandum for Regional Directors, et al. Page 2Subject: Exercising Prosecutorial DiscretionHowever, INS officers should continue to exercise their prosecutorial discretion in appropriatecases during the period before more specific program guidance is issued.A statement of principles concerning discretion serves a number of important purposes.As described in the “Principles of Federal Prosecution,”

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part of the U.S. Attorneys’ manual,such principles provide convenient reference points for the process of making prosecutorialdecisions; facilitate the task of training new officers in the discharge of their duties; contribute tomore effective management of the Government’s limited prosecutorial resources by promotinggreater consistency among the prosecutorial activities of different offices and between theiractivities and the INS’ law enforcement priorities; make possible better coordination of investigative and prosecutorial activity by enhancing the understanding between the investigativeand prosecutorial components; and inform the public of the careful process by whichprosecutorial decisions are made.

Legal and Policy Background

“Prosecutorial discretion” is the authority of an agency charged with enforcing a law todecide whether to enforce, or not to enforce, the law against someone. The INS, like other lawenforcement agencies, has prosecutorial discretion and exercises it every day. In theimmigration context, the term applies not only to the decision to issue, serve, or file a Notice toAppear (NTA), but also to a broad range of other discretionary enforcement decisions, includingamong others: Focusing investigative resources on particular offenses or conduct; decidingwhom to stop, question, and arrest; maintaining an alien in custody; seeking expedited removalor other forms of removal by means other than a removal proceeding; settling or dismissing aproceeding; granting deferred action or staying a final order; agreeing to voluntary departure,withdrawal of an application for admission, or other action in lieu of removing the alien;pursuing an appeal; and executing a removal order.The “favorable exercise of prosecutorial discretion” means a discretionary decision not toassert the full scope of the INS’ enforcement authority as permitted under the law. Suchdecisions will take different forms, depending on the status of a particular matter, but includedecisions such as not issuing an NTA (discussed in more detail below under “InitiatingProceedings”), not detaining an alien placed in proceedings (where discretion remains despitemandatory detention requirements), and approving deferred action.

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For this discussion, and much else in this memorandum, we have relied heavily upon the Principles of FederalProsecution, chapter 9-27.000 in the U.S. Department of Justice’s United States Attorneys’ Manual (Oct. 1997).There are significant differences, of course, between the role of the U.S. Attorneys’ offices in the criminal justicesystem, and INS responsibilities to enforce the immigration laws, but the general approach to prosecutorialdiscretion stated in this memorandum reflects that taken by the Principles of Federal Prosecution.

Memorandum for Regional Directors, et al. Page 3Subject: Exercising Prosecutorial DiscretionCourts recognize that prosecutorial discretion applies in the civil, administrative arena just as it does in criminal law. Moreover, the Supreme Court “has recognized on severaloccasions over many years that an agency’s decision not to prosecute or enforce, whetherthrough civil or criminal process, is a decision generally committed to an agency’s absolutediscretion.” Heckler v. Chaney, 470 U.S. 821, 831 (1985). Both Congress and theSupreme Court have recently reaffirmed that the concept of prosecutorial discretion applies toINS enforcement activities, such as whether to place an individual in deportation proceedings.INA section 242(g); Reno v. American-Arab Anti-Discrimination Committee, 525 U.S. 471(1999). The “discretion” in prosecutorial discretion means that prosecutorial decisions are notsubject to judicial review or reversal, except in extremely narrow circumstances. Consequently,it is a powerful tool that must be used responsibly.As a law enforcement agency, the INS generally has prosecutorial discretion within itsarea of law enforcement responsibility unless that discretion has been clearly limited by statute ina way that goes beyond standard terminology. For example, a statute directing that the INS“shall” remove removable aliens would not be construed by itself to limit prosecutorialdiscretion, but the specific limitation on releasing certain criminal aliens in section 236(c)(2) of the INA evidences a specific congressional intention to limit discretion not to detain certaincriminal aliens in removal proceedings that would otherwise exist. Personnel who are unsurewhether the INS has discretion to take a particular action should consult their supervisor andlegal counsel to the extent necessary.It is important to recognize not only what prosecutorial discretion is, but also what it isnot. The doctrine of prosecutorial discretion applies to law enforcement decisions whether, andto what extent, to exercise the coercive power of the Government over liberty or property, asauthorized by law in cases when individuals have violated the law. Prosecutorial discretion doesnot apply to affirmative acts of approval, or grants of benefits, under a statute or other applicablelaw that provides requirements for determining when the approval should be given. Forexample, the INS has prosecutorial discretion not to place a removable alien in proceedings, butit does not have prosecutorial discretion to approve a naturalization application by an alien whois ineligible for that benefit under the INA.This distinction is not always an easy, bright-line rule to apply. In many cases, INSdecisionmaking involves both a prosecutorial decision to take or not to take enforcement action,such as placing an alien in removal proceedings, and a decision whether or not the alien issubstantively eligible for a benefit under the INA. In many cases, benefit decisions involve theexercise of significant discretion which in some cases is not judicially reviewable, but which isnot prosecutorial discretion.Prosecutorial discretion can extend only up to the substantive and jurisdictional limits of the law. It can never justify an action that is illegal under the substantive law pertaining to the